use crate::engines::{EngineResponse, SearchQuery};

use super::regex;

pub fn request(query: &SearchQuery) -> EngineResponse {
    if !regex!("^(what('s|s| is) my (user ?agent|ua)|ua|user ?agent)$")
        .is_match(&query.query.to_lowercase())
    {
        return EngineResponse::new();
    }

    let user_agent = query.request_headers.get("user-agent");

    EngineResponse::answer_html(if let Some(user_agent) = user_agent {
        format!("<h3><b>{user_agent}</b></h3>")
    } else {
        "You don't have a user agent".to_string()
    })
}